Cloth bag dust removal system with on-line positioning leakage detection structure and use method of cloth bag dust removal system

Abstract

The invention provides a cloth bag dust removal system with an online positioning leakage detection structure and a use method. The system comprises a dust inflow assembly, an inflow switching assembly, a dust filtering assembly, a blowing dust removal assembly, an induced air conveying assembly, a purified air drainage assembly and a dust detection assembly. According to the cloth bag dust removal system, the damage condition of the filter cloth bag can be rapidly recognized through real-time monitoring of the charge type detector arranged on the cloth bag dust removal system, emission exceeding caused by cloth bag damage is avoided, the system can flexibly control the gas flowing path through the inflow switching assembly and the gas inlet valve of the filter inlet pipe, and even if part of the filter sub-chambers need to be maintained, the system can still work normally. The charge type detector can monitor the dust concentration in real time, discover the abnormal condition of the filter cloth bag in time, ensure the stability and efficiency of the system, accurately position the damaged filter cloth bag, facilitate quick repair, reduce the downtime and avoid environmental pollution and production loss.

Description

Technical Field

[0001] This invention relates to a bag filter dust collection system with an online positioning and leak detection structure and its usage method. Background Technology

[0002] Patent document CN102764550A discloses a leak detection device for a bag filter and its usage method. The device includes a controller, automatic control valves installed at the air outlets of each unit compartment of the bag filter, and an online dust concentration detector installed on the main exhaust pipe or chimney of the bag filter. The detection signal from the online dust concentration detector is input to the controller, and the controller outputs a control signal to the automatic control valves. The device detects leaks in the bag filter by controlling the opening and closing of the automatic control valves and the online dust concentration detector through the controller. Summary of the Invention

[0003] The purpose of this invention is to provide a bag filter dust collection system with an online positioning and leak detection structure and its usage method.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows:

[0005] A bag filter dust collection system with an online positioning and leak detection structure, comprising:

[0006] A dust inlet assembly is provided, and each dust inlet assembly is connected to a dust emission device. The dust emission device discharges dust-laden gas carrying dust into the dust inlet assembly, and the dust inlet assembly draws in and transports the dust-laden gas.

[0007] An inlet flow switching component is provided, which consists of a set of components. Each inlet flow switching component is connected to a dust inlet flow component, and the inlet flow switching component switches the on / off state of the dust inlet flow component.

[0008] A dust filtration assembly is provided, wherein each dust filtration assembly is connected to a dust inlet assembly on the dust-laden side. The dust inlet assembly supplies dust-laden gas to the dust filtration assembly, and the dust filtration assembly filters the gas to form clean gas on the clean gas side.

[0009] A pulse-jet cleaning assembly is installed in the dust filter assembly and works in conjunction with a cleaning drive mechanism. The cleaning drive mechanism drives the pulse-jet cleaning assembly to operate and clean the accumulated dust in the dust filter assembly.

[0010] An induced draft conveying assembly is connected to a dust filtration assembly. The induced draft conveying assembly drives the dust-laden gas to be conveyed sequentially along the dust inlet assembly, the inlet switching assembly, and the dust filtration assembly.

[0011] A clean air exhaust assembly is connected to an exhaust fan assembly, through which the clean air generated by the dust filtration assembly is discharged.

[0012] A dust detection component is installed between the clean air exhaust component and the induced draft conveying component, or on the clean air side of the dust filter component. The dust detection component detects the dust concentration in the clean air discharged through the clean air exhaust component, or detects the concentration on the clean air side of the dust filter component.

[0013] The dust inlet assembly includes:

[0014] The dust inlet hood is provided in a set. The inlet of each dust inlet hood is connected to the dust emission equipment. The dust-laden gas discharged from the dust emission equipment can be drawn into the dust inlet hood.

[0015] The inlet branch pipe is provided in a set, and each inlet branch pipe is connected to the outlet of the inlet dust hood. The dust-laden gas in the inlet dust hood can be transported through the inlet branch pipe.

[0016] The main inlet pipe is connected to each inlet branch pipe in parallel, and the dust-laden gas in the inlet branch pipes can be transported through the main inlet pipe.

[0017] The inflow switching component includes:

[0018] The inlet valves are provided in a set, each of which is an electric slide gate valve and is connected to the dust inlet assembly. The inlet valves switch the on / off state of the dust inlet assembly.

[0019] In one embodiment of the present invention, each inlet valve is installed in an inlet branch pipe, which can switch the on / off state of the inlet branch pipe respectively.

[0020] Dust filtration components include:

[0021] The filter compartment is divided into two groups, and each group of filter compartments is equipped with several filter bags. The filter bags separate the filter compartments into a dust-containing side and a clean air side.

[0022] The filter inlet pipe has two sets, each set of which is connected to the dust inlet assembly and the dust-laden side of the filter compartment. The dust-laden gas in the dust inlet assembly is introduced into the filter compartment through the filter inlet pipe, and is filtered by the filter bag. Each filter inlet pipe is equipped with an air inlet valve, which switches the on / off state of the filter inlet pipe.

[0023] In one embodiment of the present invention, each group of filter inlet pipes is connected to the main inlet pipe. The dust-laden gas in the main inlet pipe can be transported to the dust-laden side of the filter compartment through the filter inlet pipes and filtered by the filter bag to form clean gas on the clean gas side.

[0024] The air intake branch pipe has two sets, each set of which is connected to the clean air side of the filter compartment. The clean air is equipped with a clean air lift valve inside, which drives the clean air in the filter compartment to be transported through the clean air branch pipe.

[0025] The main air intake pipe is connected to each clean air branch pipe, and the clean air in the clean air branch pipes is transported through the main air intake pipe.

[0026] The pulse-jet cleaning assembly includes:

[0027] The pulse valve is provided in two sets. Each set of pulse valves is installed on the clean air side of the filter compartment and connected to the air compression mechanism. The air compression mechanism provides high-pressure gas to the pulse valve.

[0028] The pulse jet pipe has two sets, each set of which is connected to the pulse jet valve. It is located on the clean air side of the filter compartment and corresponds to the position of the filter bag. The pulse jet pipe blows the filter bag, causing the dust attached to the outer wall of the filter bag to fall off.

[0029] The dust removal cone is provided in two sets. Each set of dust removal cones is installed at the bottom of the filter compartment and below the filter bag. Dust falling off the outer wall of the filter bag enters the dust removal cone.

[0030] The ash discharge branch pipe is provided in two sets. Each set of ash discharge branch pipes is connected to the bottom of the dust removal cone. Each set of ash discharge branch pipes is equipped with an ash discharge valve. The ash discharge valves switch the on / off state of the ash discharge branch pipes. The dust accumulated in the dust removal cone can be transported through the ash discharge branch pipes.

[0031] The main ash discharge pipe is connected to each branch ash discharge pipe, and the dust in the branch ash discharge pipes is discharged through the main ash discharge pipe.

[0032] The induced draft conveying assembly includes:

[0033] The conveying fan is connected to the dust filter assembly. The conveying fan drives the dust-laden gas to be conveyed sequentially along the dust inlet assembly, the inlet switching assembly and the dust filter assembly.

[0034] In one embodiment of the invention, the conveying fan is installed in the clean air main pipe.

[0035] The air purification and exhaust system includes:

[0036] An exhaust chimney is connected to the induced draft output assembly, through which the clean air generated by the dust filtration assembly is discharged by the induced draft conveying assembly.

[0037] In one embodiment of the present invention, the exhaust chimney is installed at the end of the clean air main pipe and is connected to the air outlet of the conveying fan.

[0038] The dust detection components include:

[0039] The charge detector consists of several units, each installed on the clean air side of the filter compartment or in the clean air main pipe. The charge detector is used to detect the dust concentration on the clean air side of the filter compartment or in the clean air main pipe.

[0040] In one embodiment of the present invention, the charge detector includes a rod-shaped motor and a signal processing module. Charged dust induces corresponding positive and negative charges on the surface of the rod-shaped electrode, which flow in a directional manner to form a current signal. The magnitude of the signal fluctuation depends on the number of charged particles.

[0041] A method of using a bag filter dust collection system, comprising operating the aforementioned bag filter dust collection system, including:

[0042] Connect the inlet dust hood to the discharge section of the dust emission equipment, open the inlet valve, and turn on the conveying fan so that the dust-laden gas emitted by the dust emission equipment enters the inlet dust hood and then enters the inlet main pipe through the inlet branch pipe.

[0043] Open the inlet valve and close the pulse jet valve to allow the dust-laden gas in the main inlet pipe to be introduced into the dust-laden side of the filter compartment through the filter inlet pipe. The dust-laden gas is filtered by the filter bag to form clean gas on the clean gas side. Open the clean gas lift valve to transport the clean gas on the clean gas side of the filter compartment to the clean gas main pipe through the clean gas branch pipe.

[0044] Clean air from the main clean air pipe is discharged from the exhaust chimney by a conveying fan;

[0045] Close the air inlet valve and clean air lift valve of the filter compartment to be cleaned, open the pulse jet valve of the filter compartment, and blow the filter bag with the pulse jet pipe to remove the dust adhering to the outer wall of the filter bag and let it enter the cleaning cone. Open the ash discharge valve of the filter compartment to let the dust accumulated in the cleaning cone enter the ash discharge main pipe through the ash discharge branch pipe and then be discharged.

[0046] After the pulse-jet cleaning process, close the pulse-jet valve and ash discharge valve of the filter compartment, and open the inlet valve and clean air lift valve to allow the dust-laden gas to re-enter the filter compartment. The filter bags will then continue to filter the gas, forming clean air on the clean air side. The clean air will then be transported to the clean air main pipe through the clean air branch pipe by the clean air lift valve.

[0047] further:

[0048] During the pulse jet cleaning of the filter bags, a charge-type detector on the clean air side of the filter compartment detects dust concentration and compares it with standard concentration parameters. When a short-term, slight increase in dust concentration on the clean air side is detected, but the concentration is still below the standard parameter, the filter bags in that filter compartment are considered normal. When a significant increase in dust concentration on the clean air side is detected, and the concentration exceeds the standard parameter, the filter bags in that filter compartment are considered damaged, and a fault signal is output. The location of the damaged filter bag is determined based on the installation position of the charge-type detector, and the damaged filter bag is replaced.

[0049] During the re-filtration process, the dust concentration is detected by a charge detector on the clean air side of the filtration compartment, and the dust concentration information is compared with the standard concentration parameter. When a short-term, slight increase in the dust concentration on the clean air side is detected, but it is still below the standard concentration parameter, the filter bag in that filtration compartment is considered normal. When a significant increase in the dust concentration on the clean air side is detected, and it is detected that the filter bag in that filtration compartment is damaged, a fault signal is output, the location of the damaged filter bag is determined according to the installation position of the charge detector, the air inlet valve and clean air rise valve of that filtration compartment are closed, and the damaged filter bag is replaced.

[0050] The advantages of this invention are:

[0051] The baghouse dust collector system is equipped with a charge detector that enables real-time monitoring to quickly identify filter bag damage, allowing for timely maintenance or replacement and preventing emissions exceeding standards due to bag damage. Through the inlet switching component and the inlet valve of the filter inlet pipe, the system can flexibly control the gas flow path. Even if some filter compartments require maintenance, other parts can continue to operate, ensuring continuous production. The charge detector can monitor dust concentration in real time, promptly detecting abnormalities in the filter bags and ensuring system stability and efficiency. It can accurately locate damaged filter bags for rapid repair, reducing downtime. Through continuous monitoring, measures can be taken before the filter bags completely fail, preventing environmental pollution and production losses caused by bag damage. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the bag filter dust collection system with online positioning and leak detection structure proposed in this invention;

[0053] Figure 2 This is a schematic diagram showing the installation status of the filter compartments;

[0054] Figure 3 This is one of the schematic diagrams showing the installation status of the pulse jet valve in the filter compartment;

[0055] Figure 4 This is the second schematic diagram showing the installation status of the pulse valve in the filter compartment;

[0056] Figure 5 This is the third schematic diagram showing the installation status of the pulse valve in the filter compartment. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0058] like Figures 1-5 As shown, the bag filter dust collection system with online positioning and leak detection structure proposed in this invention includes a dust inlet component, an inlet switching component, a dust filtration component, a pulse-jet cleaning component, an induced draft conveying component, a clean air exhaust component, and a dust detection component.

[0059] A set of dust inlet components is provided, and each dust inlet component is connected to a dust emission device. The dust emission device discharges dust-laden gas carrying dust into the dust inlet components, and the dust inlet components draw in and transport the dust-laden gas.

[0060] The inlet flow switching component is provided in a set, and each inlet flow switching component is connected to the dust inlet flow component. The inlet flow switching component switches the on and off state of the dust inlet flow component.

[0061] The dust filtration assembly is provided in a set. The dust-containing side of each dust filtration assembly is connected to the dust inlet assembly. The dust inlet assembly delivers dust-containing gas to the dust filtration assembly, and the dust filtration assembly filters the gas to form clean gas on the clean gas side.

[0062] The pulse-jet cleaning assembly is installed in the dust filter assembly and works in conjunction with the cleaning drive mechanism. The cleaning drive mechanism drives the pulse-jet cleaning assembly to operate and clean the dust accumulated in the dust filter assembly.

[0063] The induced draft conveying component is connected to the dust filtration component. The induced draft conveying component drives the dust-laden gas to be transported sequentially along the dust inlet component, the inlet switching component, and the dust filtration component.

[0064] The clean air exhaust component is connected to the induced draft conveying component, and the clean air generated by the dust filtration component is discharged through the clean air exhaust component by the induced draft conveying component.

[0065] The dust detection component is installed between the clean air exhaust component and the induced draft conveying component, or on the clean air side of the dust filter component. The dust detection component detects the dust concentration in the clean air discharged through the clean air exhaust component, or detects the concentration on the clean air side of the dust filter component.

[0066] In this embodiment, the dust inlet assembly includes an inlet dust hood 110, an inlet branch pipe 120, and an inlet main pipe 130. The inlet dust hood is provided in a set, and the inlet part of each inlet dust hood is connected to the dust emission equipment. The dust-laden gas discharged by the dust emission equipment can be drawn into the inlet dust hood. The inlet branch pipe is provided in a set, and each inlet branch pipe is connected to the outlet part of the inlet dust hood. The dust-laden gas in the inlet dust hood can be transported through the inlet branch pipe. The inlet main pipe is connected to each inlet branch pipe after parallel connection, and the dust-laden gas in the inlet branch pipe can be transported through the inlet main pipe.

[0067] The inlet flow switching component includes an inlet valve 200. There is a set of inlet valves, each of which is an electric slide gate valve and is connected to the dust inlet component. The inlet valves switch the on / off state of the dust inlet component.

[0068] In this embodiment, each inlet valve is installed in the inlet branch pipe, and the on / off state of the inlet branch pipe can be switched respectively.

[0069] The dust filtration assembly includes a filter compartment 310, a filter inlet pipe 320, a clean air branch pipe 330, and a clean air main pipe 340. There are two sets of filter compartments, each containing several filter bags 311 that separate the filter compartments into a dust-laden side and a clean air side. There are also two sets of filter inlet pipes, each connected to a dust inlet assembly and to the dust-laden side of the filter compartment. Dust-laden gas from the dust inlet assembly is introduced into the filter compartment through the filter inlet pipes and filtered by the filter bags. Each filter inlet pipe is equipped with an inlet valve 32. 1. The on / off state of the filter inlet pipe is switched by the air inlet valve; In this embodiment, each group of filter inlet pipes is connected to the main inlet pipe. The dust-laden gas in the main inlet pipe can be transported to the dust-laden side of the filter compartment through the filter inlet pipe, and filtered by the filter bag to form clean gas on the clean gas side; There are two groups of air inlet branch pipes. Each group of clean gas branch pipes is connected to the clean gas side of the filter compartment. A clean gas lift valve 331 is installed inside the branch pipe. The clean gas lift valve drives the clean gas in the filter compartment to be transported through the clean gas branch pipe; The main inlet pipe is connected to each clean gas branch pipe. The clean gas in the clean gas branch pipe is transported through the main clean gas pipe.

[0070] The pulse-jet cleaning assembly includes a pulse valve 410, a pulse-jet pipe 420, a cleaning cone 430, a discharge branch pipe 440, and a discharge main pipe 450. Two sets of pulse valves are provided, each set installed on the clean air side of the filter compartment and connected to an air compressor mechanism. The air compressor mechanism supplies high-pressure gas to the pulse valves. Two sets of pulse-jet pipes are also provided, each set connected to a pulse-jet valve. These pipes are located on the clean air side of the filter compartment and correspond to the positions of the filter bags. The pulse-jet pipes blow gas onto the filter bags, causing... Dust adhering to the outer wall of the filter bag falls off. There are two sets of cleaning cones, each set installed at the bottom of the filter compartment and below the filter bag. Dust falling off the outer wall of the filter bag enters the cleaning cone. There are two sets of ash discharge branch pipes, each set connected to the bottom of the cleaning cone. Each branch pipe is equipped with an ash discharge valve 441, which switches the on / off state of the ash discharge branch pipe. Dust accumulated in the cleaning cone can be transported through the ash discharge branch pipe. The ash discharge main pipe is connected to each ash discharge branch pipe, and the dust in the ash discharge branch pipe is discharged through the ash discharge main pipe.

[0071] The induced draft conveying assembly includes a conveying fan 500, which is connected to the dust filtration assembly. The conveying fan drives the dust-laden gas to be conveyed sequentially along the dust inlet assembly, the inlet switching assembly, and the dust filtration assembly.

[0072] In this embodiment, the conveying fan is installed in the clean air main pipe.

[0073] The clean air exhaust assembly includes an exhaust chimney 600, which is connected to the induced draft output assembly. The induced draft conveying assembly discharges the clean air generated by the dust filtration assembly through the exhaust chimney.

[0074] In this embodiment, the exhaust chimney is installed at the end of the clean air main pipe and is connected to the air outlet of the conveying fan.

[0075] The dust detection assembly includes a charge detector 700, which consists of several units. Each charge detector is installed on the clean air side of the filter compartment or in the clean air main pipe. The charge detector is used to detect the dust concentration on the clean air side of the filter compartment or in the clean air main pipe.

[0076] In this embodiment, the charge detector has a rod-shaped motor and a signal processing module. Charged dust particles induce corresponding positive and negative charges on the surface of the rod-shaped electrode, and flow in a directional manner to form a current signal. The magnitude of the signal fluctuation depends on the number of charged particles.

[0077] The above-mentioned bag filter dust collection system is used in the following ways:

[0078] Connect the inlet dust hood to the discharge section of the dust emission equipment, open the inlet valve, and turn on the conveying fan so that the dust-laden gas emitted by the dust emission equipment enters the inlet dust hood and then enters the inlet main pipe through the inlet branch pipe.

[0079] Open the inlet valve and close the pulse jet valve to allow the dust-laden gas in the main inlet pipe to be introduced into the dust-laden side of the filter compartment through the filter inlet pipe. The dust-laden gas is filtered by the filter bag to form clean gas on the clean gas side. Open the clean gas lift valve to transport the clean gas on the clean gas side of the filter compartment to the clean gas main pipe through the clean gas branch pipe.

[0080] Clean air from the main clean air pipe is discharged from the exhaust chimney by a conveying fan;

[0081] Close the air inlet valve and clean air lift valve of the filter compartment to be cleaned, open the pulse jet valve of the filter compartment, and blow the filter bag with the pulse jet pipe to remove the dust adhering to the outer wall of the filter bag and let it enter the cleaning cone. Open the ash discharge valve of the filter compartment to let the dust accumulated in the cleaning cone enter the ash discharge main pipe through the ash discharge branch pipe and then be discharged.

[0082] After the pulse-jet cleaning process, close the pulse-jet valve and ash discharge valve of the filter compartment, and open the inlet valve and clean air lift valve to allow the dust-laden gas to re-enter the filter compartment. The filter bags will then continue to filter the gas, forming clean air on the clean air side. The clean air will then be transported to the clean air main pipe through the clean air branch pipe by the clean air lift valve.

[0083] During the pulse jet cleaning of the filter bags, a charge-type detector on the clean air side of the filter compartment detects dust concentration and compares it with standard concentration parameters. When a short-term, slight increase in dust concentration on the clean air side is detected, but the concentration is still below the standard parameter, the filter bags in that filter compartment are considered normal. When a significant increase in dust concentration on the clean air side is detected, and the concentration exceeds the standard parameter, the filter bags in that filter compartment are considered damaged, and a fault signal is output. The location of the damaged filter bag is determined based on the installation position of the charge-type detector, and the damaged filter bag is replaced.

[0084] During the re-filtration process, the dust concentration is detected by a charge detector on the clean air side of the filtration compartment, and the dust concentration information is compared with the standard concentration parameter. When a short-term, slight increase in the dust concentration on the clean air side is detected, but it is still below the standard concentration parameter, the filter bag in that filtration compartment is considered normal. When a significant increase in the dust concentration on the clean air side is detected, and it is detected that the filter bag in that filtration compartment is damaged, a fault signal is output, the location of the damaged filter bag is determined according to the installation position of the charge detector, the air inlet valve and clean air rise valve of that filtration compartment are closed, and the damaged filter bag is replaced.

[0085] In the description of this invention, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this invention is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A baghouse system having an online location leak detection structure, comprising: The dust inlet assembly is provided with a group of dust inlet assemblies, each of which is communicated with the dust emission device, the dust emission device discharges the dust-containing gas carrying dust to the dust inlet assembly, and the dust-containing gas is sucked and transported by the dust inlet assembly. The inlet switching assembly is provided with a group of inlet switching assemblies, each of which is communicated with the dust inlet assembly, and the inlet switching assembly switches the on-off state of the dust inlet assembly. The dust filtration assembly is provided with a group of dust filtration assemblies, the dust side of each dust filtration assembly is communicated with the dust inlet assembly, the dust-containing gas is transported from the dust inlet assembly to the dust filtration assembly, and the dust filtration assembly filters and processes the dust-containing gas, and forms clean gas on the clean gas side. The dust filtration assembly is provided with a group of dust filtration assemblies, the dust side of each dust filtration assembly is communicated with the dust inlet assembly, the dust-containing gas is transported from the dust inlet assembly to the dust filtration assembly, and the dust filtration assembly filters and processes the dust-containing gas, and forms clean gas on the clean gas side. The dust detection assembly is installed between the clean gas exhaust assembly and the air supply and transport assembly, or on the clean gas side of the dust filtration assembly, and detects the dust concentration of the clean gas discharged from the clean gas exhaust assembly or the clean gas side of the dust filtration assembly. The dust inlet assembly includes: The inlet dust cover is provided with a group of inlet dust covers, the inlet of each inlet dust cover is communicated with the dust emission device, and the dust emission device discharges the dust-containing gas into the inlet dust cover. The inlet branch pipe is provided with a group of inlet branch pipes, each of which is communicated with the outlet of the inlet dust cover, and the dust-containing gas in the inlet dust cover can be transported through the inlet branch pipe.

2. The baghouse system with online leak detection and location according to claim 1, wherein, The inlet main pipe is communicated with the parallel inlet branch pipes, and the dust-containing gas in the inlet branch pipe can be transported through the inlet main pipe. The inlet switching assembly includes: The inlet valve is provided with a group of inlet valves, each of which is an electric gate valve, and is communicated with the dust inlet assembly, and the inlet valve switches the on-off state of the dust inlet assembly. The dust filtration assembly includes:

3. The baghouse system with online leak detection and location according to claim 1, wherein, The filtration sub-chamber is provided with two groups of filtration sub-chambers, each of which is provided with a plurality of filter bags, and the filtration sub-chamber is divided into a dust-containing side and a clean gas side by the filter bags. The filtration inlet pipe is provided with two groups of filtration inlet pipes, each of which is communicated with the dust inlet assembly and the dust-containing side of the filtration sub-chamber, the dust-containing gas in the dust inlet assembly is introduced into the filtration sub-chamber through the filtration inlet pipe, and the filtration is processed by the filter bag, and the inlet valve is arranged in each filtration inlet pipe to switch the on-off state of the filtration inlet pipe.

4. The baghouse system having an online leak detection and location structure according to claim 1, wherein, ​ ​ ​ The net gas branch pipes are provided with two groups, and the net gas branch pipes in each group are communicated with the net gas side of the filter sub-chamber respectively, and the net gas lifting valves are arranged in the net gas branch pipes, and the net gas in the filter sub-chamber is conveyed by the net gas lifting valves through the net gas branch pipes; The net gas main pipe is communicated with the net gas branch pipes, and the net gas in the net gas branch pipes is conveyed through the net gas main pipe.

5. The baghouse system having an online leak detection and location structure according to claim 4, wherein, The blowing and ash removal assembly comprises: The blowing pulse valves are provided with two groups, and the blowing pulse valves in each group are respectively installed on the net gas side of the filter sub-chamber and communicated with the air compressor mechanism, and the high-pressure gas is provided to the blowing pulse valves by the air compressor mechanism; The blowing pulse pipes are provided with two groups, and the blowing pulse pipes in each group are respectively communicated with the blowing pulse valves, and located on the net gas side of the filter sub-chamber and corresponding to the filter cloth bag position, and the filter cloth bag is blown by the blowing pulse pipes to make the dust adhered to the outer wall of the filter cloth bag fall off; The ash removal cone pots are provided with two groups, and the ash removal cone pots in each group are respectively installed on the bottom of the filter sub-chamber and located below the filter cloth bag, and the dust falling off from the outer wall of the filter cloth bag enters the ash removal cone pots; The ash removal branch pipes are provided with two groups, and the ash removal branch pipes in each group are respectively jointed on the bottom of the ash removal cone pots, and the ash removal valves are respectively arranged in the ash removal branch pipes, and the on-off state of the ash removal branch pipes is switched by the ash removal valves, and the dust accumulated in the ash removal cone pots can be conveyed through the ash removal branch pipes; The ash removal main pipe is communicated with the ash removal branch pipes, and the dust in the ash removal branch pipes is discharged through the ash removal main pipe.

6. The baghouse system having an online leak detection and location system as claimed in claim 1, wherein, The air conveying assembly comprises: The conveying fan is communicated with the dust filtering assembly, and the dust-containing gas is conveyed by the conveying fan along the dust inflow assembly, the inflow switching assembly and the dust filtering assembly in sequence.

7. The baghouse system having an online leak detection and location system as claimed in claim 1, wherein, The net gas exhaust assembly comprises: The exhaust chimney is communicated with the air conveying assembly, and the net gas formed by the dust filtering assembly is discharged through the exhaust chimney by the air conveying assembly.

8. The baghouse system having an online leak detection and location structure according to claim 4, wherein, The dust detection assembly comprises: The charge type detectors are provided with several pieces, and the charge type detectors are respectively installed on the net gas side of the filter sub-chamber or in the net gas main pipe, and the dust concentration of the net gas side of the filter sub-chamber or the net gas main pipe is detected by the charge type detectors.

9. A method of using a baghouse system, the baghouse system being operated using the baghouse system of any one of claims 1 to 8, wherein, The method comprises: The inflow dust cover is connected with the discharge part of the dust discharge equipment, the inflow valve is opened, the conveying fan is started, and the dust-containing gas discharged by the dust discharge equipment enters the inflow dust cover, and then enters the inflow main pipe through the inflow branch pipe; The inflow valve is opened, the blowing pulse valve is closed, the dust-containing gas in the inflow main pipe is introduced into the dust-containing side of the filter sub-chamber through the filter inlet pipe, the dust-containing gas is filtered by the filter cloth bag, the net gas is formed on the net gas side, the net gas lifting valve is opened, and the net gas on the net gas side of the filter sub-chamber is conveyed to the net gas main pipe through the net gas branch pipe; The net gas in the net gas main pipe is discharged from the exhaust chimney by the conveying fan; The inflow valve and the net gas lifting valve of the filter sub-chamber to be cleaned are closed, the blowing pulse valve of the filter sub-chamber is opened, the filter cloth bag is blown by the blowing pulse pipe, the dust adhered to the outer wall of the filter cloth bag falls off and enters the ash removal cone pot, the ash removal valve of the filter sub-chamber is opened, and the dust accumulated in the ash removal cone pot enters the ash removal main pipe through the ash removal branch pipe and is then discharged; The injection pulse valve and the ash discharge valve of the filter chamber after the injection and ash removal treatment are closed, the air inlet valve and the clean air lifting valve are opened, the dust-containing gas re-enters the filter chamber, and the filter bag continues to filter the dust-containing gas, clean air is formed on the clean air side, and the clean air is transported to the clean air main pipe through the clean air branch pipe by the clean air lifting valve.

10. The method of using the bag filter system according to claim 9, wherein: During the injection process of the injection pulse pipe to the filter bag, the dust concentration is detected by the charge type detector on the clean air side of the filter chamber, and the dust concentration information is compared with the standard concentration parameter; when the dust concentration on the clean air side is slightly increased and less than the standard concentration parameter, it is determined that the filter bag in the filter chamber is normal; when the dust concentration on the clean air side is greatly increased and greater than the standard concentration parameter, it is determined that the filter bag in the filter chamber is damaged, and a fault signal is output; the position of the damaged filter bag is determined according to the installation position of the charge type detector, and the damaged filter bag is replaced; During the re-filtering process of the filter bag, the dust concentration is detected by the charge type detector on the clean air side of the filter chamber, and the dust concentration information is compared with the standard concentration parameter; when the dust concentration on the clean air side is slightly increased and less than the standard concentration parameter, it is determined that the filter bag in the filter chamber is normal; when the dust concentration on the clean air side is greatly increased and greater than the standard concentration parameter, it is determined that the filter bag in the filter chamber is damaged, and a fault signal is output; the position of the damaged filter bag is determined according to the installation position of the charge type detector, and the damaged filter bag is replaced.

Images